Hair clipper



May 13, 1930. V H KEL Y 1,758,747

HAIR CLIPPER Filed March 29.- 1927 jwuentoz W ffeZZ y.

abtozmq Patented May 13, 1930 UNITED STATES PATENT OFFICE,

WILLIAM H. KELLY, F PITTSBURG, KANSAS HAIRY CLIPPER Application filedMarch 29, 1927. Serial No. 179,324.

This invention relates to new and usefu improvements in hair clippers.

The primary object of my invention is to provide a hair clipper in whichthe jaws of the upper and lower plates are made concave or curvedupwardly and the teeth gradually beveled or tapered to a point.

With the hair clippers now in use, a shoulder is left which must beeliminated with the 1 use of shears and a comb and it is the principalobject of my invention to provide a hair clipper which will graduate thecut andelimigate this unnecessary additional time and la- In theaccompanying drawings, which are for illustrative purposes only and arethcrefore not drawn to scale:

Figure 1 is a plan view, illustrating the application of my invention.

Figure 2 is an edge view.

Figure 3 is a vertical transverse section of the cutters, taken on line33 of Figure 1.

Figure 4 is a plan view of the lower stationary plate of the hairclippers and Figure 5 is a similar view of the upper plate.

Referring to the drawings for a more particular description of myinvention and in which drawings like parts are designated by likereference characters throughout the severa'l views, A designates thelower stationary.

plate of the'hair clipper, B the upper plate which is mounted toreciprocate back and forth on the lower plateJan'd C the operatinghandles for the upper plate.

the upper plate B is made slightly concave or curved upwardly andthecutting teeth 2 of the jaw gradually beveled or tapered outwardly to apoint while the jaw 3 of the lower.

40 plate has its upper surface 3 curved to conform with the curvature ofthe bottom face of the jaw 1 and is also provided with cutting teeth 4which are beveled or tapered outwardly and curved upwardly and co-actwith the teeth 2 in the cutting operation. In forming the jaw 1 of theupper plate in the manner shown, a straight shoulder 5 is formed at theback of the jaw 1 which works against a corresponding shoulder 6 formedat the back of the jawof the lower plate.

In carrying out my invention, the jaw 1 of H The upper face of the lowerstationary plate is formed just behind the shoulder 6 with a transversegroove or recess 7 which extends across the full width thereof and witha second corresponding groove or recess 8 which also extends across theentire width of said plate behind and inparallel relation with thegroove or recess 7. The aforesaid grooves or recesses 7 and 8 preventbinding of the upper plate and the lower stationary plate in theoperation of the device.

The construction of the clippers is otherwise the same as now employedand the principal object of my invention is to so form or construct thecutting teeth that the time and labor now-required in eliminating theusual shoulder left after the use of the clippers and by employingshears and a comb, may be save From the foregoing description, taken inconnection with the drawings, it is thought that the construction,operation and advantages of my invetnion will be readily understoodwithout requiring a more extended explanation.

Having described my invention, what I claim as new and desire to secureby Letters Patent, is:

A hair clipper comprising a flat upper movable plate formed with anupwardly curved or concave offset jaw whose teeth are tapered or beveledoutwardly to a point and a flat binding of'the'upper plate in theoperation of the device.

In testimony whereof he afiixes his signature.

' WILLIAM H. KELLY.

